Effect of different centric relation registrations on the pantographic representation of centric relation.

A study was designed to determine the effect of three different centric relation recording methods on the pantographic representation of centric relation. A modified pantograph was used as the measuring instrument. Variances for each method were established on one subject, and variance of location of centric relation was established on two different subjects. Mean differences between recording methods and centric relation were established on three subjects. Wax was found to be the least reliable material tested and the least accurate for recording centric relation.